“…Finally it should be noted that the stapedial reflex may not be present in a small proportion of normal adult subjects (approximately 5 per cent) and in a higher proportion in the younger age group (under 5 years); with increasing age, this difference disappears (Weiss et al, 1962;Robertson et al, 1968;Jerger, 1970). The results obtained by Robertson were on children aged 1 to 3 years using the earlier Madsen bridge (ZO 61), those by Jerger were on children aged 2 to 5 years, using the present Madsen bridge (ZO 70).…”